Patents by Inventor Chitta L. Rao

Chitta L. Rao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Providing at least one peer connection between a plurality of coupling facilities to couple the plurality of coupling facilities
    Patent number: 6954817
    Abstract: A coupling facility is coupled to one or more other coupling facilities via one or more peer links. The coupling of the facilities enables various functions to be supported, including the duplexing of structures of the coupling facilities. Duplexing is performed on a structure basis, and thus, a coupling facility may include duplexed structures, as well as non-duplexed or simplexed structures.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: October 11, 2005
    Assignee: International Business Machines Corporation
    Inventors: Mark A. Brooks, David A. Elko, Steven N. Goss, Michael J. Jordan, Georgette L. Kurdt, Jeffrey M. Nick, Chitta L. Rao, David H. Surman, Steven B. Jones
  • Coupling of a plurality of coupling facilities using peer links
    Publication number: 20030196016
    Abstract: A coupling facility is coupled to one or more other coupling facilities via one or more peer links. The coupling of the facilities enables various functions to be supported, including the duplexing of structures of the coupling facilities. Duplexing is performed on a structure basis, and thus, a coupling facility may include duplexed structures, as well as non-duplexed or simplexed structures.
    Type: Application
    Filed: October 1, 2001
    Publication date: October 16, 2003
    Applicant: International Business Machines Corporation
    Inventors: Mark A. Brooks, David A. Elko, Steven N, Goss, Michael J. Jordan, Georgette L. Kurdt, Jeffrey M. Nick, Chitta L. Rao, David H. Surman, Steven B. Jones
  • Dynamically repositioned memory bank queues
    Patent number: 5276838
    Abstract: A queue structure is functionally equivalent to individual FIFO bank queues but requires only slightly more hardware than the single BSM queue approach. The queue structure uses "self-advancing" WAITING queues (one per BSM) in which there is a one-to-one correspondence between a (valid) queue position and a busy bank within a given BSM. However, the position/bank relationship is dynamically managed such that positions only exist for busy banks, thereby essentially providing a FIFO queue per bank while maintaining one queue per BSM.
    Type: Grant
    Filed: March 4, 1991
    Date of Patent: January 4, 1994
    Assignee: International Business Machines Corporation
    Inventors: Chitta L. Rao, Steven W. White